Mighty Mule FM702 - Manual (Page 28)

24
Potentiometer Settings
The three (3) potentiometers on the control board operate like a volume control on a radio. They control the auto close timer,
inertia, and obstruction sensitivity of the opener. Use a small screwdriver to turn the arrow in the center of the potentiometer.
Clockwise rotation increases the setting (MAX). Counterclockwise rotation decreases the setting (MIN).
AUTO CLOSE (auto close timer): Determines how long the gate will remain open before it automatically closes. The limits
are OFF to 120 seconds. The factory setting is OFF.
INERTIA: Fine tunes obstruction sensitivity in the opening and closing modes.
When INERTIA is set to MIN the opener will obstruct quickly (i.e, will attempt to
push against an
obstruction briefly); when set to MAX, the opener will obstruct slowly (i.e., will
push against an obstruction for a longer period). The factory setting is MIN.
OBSTRUCT SENS. (obstruction sensitivity): Determines the amount of force
exerted by the gate on an obstruction before the opener stops and reverses. The gate
will exert minimum force before obstructing when set to MIN. When set to MAX,
the opener will exert maximum force before obstructing (i.e., the opener will require
greater resistance before stopping and reversing.). The factory setting is MIN.
READ WARNING BELOW!
NOTE: Heavy gates and gates with high wind resistance may require the
OBSTRUCT SENS and INERTIA potentiometer to be set closer to MAX to
prevent the opener from obstructing. Keep in mind, however, that while you must
determine the best setting for smooth gate operation, you must ALSO determine the
lowest possible setting for safe gate operation.
WARNING!
All three potentiometers were set to minimum at the factory. The OBSTRUCT SENS.
potentiometer MUST be adjusted above the factory setting for your Mighty Mule Gate
Opener
® to function properly. If the potentiometer is left at MIN, your gate opener may
"obstruct" (i.e., stop and reverse) as soon as it is activated.
BE SURE TO PROPERLY RETEST THE GATE OPENER AFTER MAKING ANY
ADJUSTMENTS; FAILURE TO DO SO MAY RESULT IN SERIOUS INJURY OR
DEATH!
ALWAYS KEEP
SAFETY
AT THE TOP OF YOUR LIST
WHEN ADJUSTING OR
SERVICING YOUR AUTOMATIC GATE OPENER!
1234 ON
AUTOCLOSE
INERTIA
OBSTRUCT
SENS.
RCVR
SEQ1
SEQ2
LEARN
R B G
PULL/PUSH
SNGL/DUAL MIN MAX
MIN
OFF 120
60
MAX